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Phoronix Test Suite

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Linux KVM Virtualization Performance

Michael Larabel

Published on 8 January 2007
Written by Michael Larabel
Page 4 of 4 - Add A Comment

Looking over the virtualization performance results, KVM was not the clear winner in all of the benchmarks. KVM had taken the lead during Gzip compression, but in the other four benchmarks it had stumbled behind Xen 3.0.3. However, both Xen with full virtualization and the Kernel-based Virtual Machine had performed in front of QEMU with the QEMU accelerator in our select benchmarks using dual Intel Xeon LV processors with Intel Virtualization Technology. The benefits of KVM are high performance, stable, no modifications of the guest operating system are necessary, and a great deal of other capabilities (e.g. using the Linux scheduler). Once the Linux 2.6.20 kernel is officially out the door we will proceed with a greater number of KVM benchmarks in various environments including looking at the hardware virtualization performance between AMD and Intel.

If you have tried out Linux KVM, be sure to share your results in the Phoronix Forums.

About The Author
Michael Larabel is the principal author of Phoronix.com and founded the web-site in 2004 with a focus on enriching the Linux hardware experience and being the largest web-site devoted to Linux hardware reviews, particularly for products relevant to Linux gamers and enthusiasts but also commonly reviewing servers/workstations and embedded Linux devices. Michael has written more than 10,000 articles covering the state of Linux hardware support, Linux performance, graphics hardware drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated testing software. He can be followed via and or contacted via .
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